Rotary pump



P. H. MUSSWITZ.

ROTARY PUMP.

APPLlcAloN FILED mm1, 1920.

1,378,891. Patented May 24,1921.

2 SHEETS-SHEET i.

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P. H. MUSSWITZ.

ROTARY PUMP. APPLICATION FILED MAR1| 1920.

1,378,891 v Patented May 24, 1921.

2 SHEETS-SHEET 2.

i 7 UNriiEzD- STATESv PATENT GFFICE- PAUL I. HUSBWITZ, 0F VALLEJO,CALIFORNIA.

Ronny Puur.

`Spoetmuttion of Letters ratent.

Application mea umh i, 1920. serial No. aeasvs.

To all whom t may concern:

Be it known that I, PAUL H. MUssWrrz, a citizen of the United States,residin at Vallejo, in the county of Solano and -tate of California,have invented certain new and useful Improvements in Rotary Pumps, ofwhich the following is a specification. v

My invention relates to new and useful improvements in pumps and moreparticular to a rotary pump.

The primary object of the invention is the provision of a rotary pumpwhich will draw the [water and discharge they same under pressure.

Another object o f the invention consists in a novel form of stator androtor adapted to coperate for elevating` the water and discharging thesame under pressure.

A further object of the invention consists in a novel form of mountingfor the stator and motor.

-With these and other objects in view my invention consists in the noveldetails of construction andv arrangement of parts which will be moreclearly understood from the following specification and drawings inwhich Figure 1 is a longitudinal vertical section.

Fig. 2 is a horizontal section on the line 2--2 of Fig. 1.

Fig. 3 is a fragmental sectional detail through the stator, the rotorbeing shown in side elevation.

Fi 4 is a diagrammatic view showing the relative position of the bladeson the rotor ang projections or abutments on the stator, an

- Fi 5 is a longitudinal vertical section showing a slightly modifiedform of the invention.

In the drawings the numeral 1 indicates the base which is preferablycircular in top plan and this base is provided, interiorly, intermediatethe top and bottom, with a plate 2 having a central opening for apurpose to be later described. A flange 3 is ormed around the inner edgeof the base, at the top, and a casting 4 is received upon the top of thebase 1 and engages the flange 3. This casting 4 is provided on each sidewith an inlet opening 5 and is provided with a central opening .for apurpose to. be later A* described.

A casing 6 is received upon the top of the casting 4 and is provided onthe interior with a plurality of circumferentially and vertically spacedprojections or lugs 7. A casting 8 is mounted upon the top of the casing6 and is provided on each side With an outlet opening 9 as moreparticularly illustrated in Fig. 1 of the drawings. This casting 8 isalso provided with a central opening registering with the centralopening in the casting 4 and this opening is for a purpose to be laterdescribed. The cast-` thrust bearing.

A vertical shaft 14 extends through the openings. in the center of thecastings 4 and 8 and the lower end 15 of the shaft extends into thethrust bearing as shown more particularly in Fig. 1 of the drawings. Asshown this end 15 is tapered so as to snugly fit Within the upperportion of the thrust bearing. A packing 16 surrounds the shaft in thecentral opening in the casting 4 and a packing nut 17 securely forcesthe packing into position. Packing 18 is received around the shaft inthe o ening in the casting 8 and is held in position by means of thepacking nut 19 of vusual construction. The upper end of the shaft 14 isbeveled as indicated at 20 to receive a coupling sleeve 21 whichconnects the shaft to a driving shaft operated in a manner to be laterdescribed.

A cylindrical rotor 22 is mounted within the casing 6 and is preferablyhollow as shown in Fig. 1 of the drawings and is keyed to the shaft 14in any desired manner. As shown the rotor is preferably provided with acentral opening through which the shaft passes and the shaft may bekeyed to Patented May 24.-, 1921.

vertically spaced blades 23. These blades A are circumferentially spacedand staggered so that the endsof adjacent blades will overla as moreparticu arly shown in Fig. 4 op the drawings. One end of each blade isbeveled on the lower face as indicated at 24 and the opposite end isbeveled on the upper face as shown at 25. Each blade 23 is also inclinedas shown and engages or operates between the vertically spaced rows ofprojections 7 on the interior of the casing 6.

A frame 26 is mounted upon the top of the casting 8 and is used /forsupporting a steam turbine or other motor which drives a shaft 27connected to the shaft 14 by the sleeve 21.

As shown more particularly in Fi 2 of the drawings the casing 6 is preerably formed in sections each of which has a ilange 28 to which bolts29 pass for securing the sections together.

From the above detailed description it is thought that the preferredform of my invention will be clearly understood as to the constructionand operation. The shaft 27 is rotated through means of a steam turbineor other suitable motor and in turn drives the shaft 14 which rotatesthe rotor 22. The rotation of the rotor 22 draws the water through theinlet openings 5 of the casting 4 and said water is elevated by theblades 23 and discharges throu h the outlet openings 9 in the casting 8.he blades 23 on the rotor being inclined will properly elevate the waterand the projections 7 on the stator will act to prevent the water beinthrown circumferentially instead of proper y raised. In other words theprojections 7 coperate with the blades 23 to properly elevate the water.By beveling the upper face -of on'e end of the blades 23 and the lowerface of the opposite end the blades will properly engage the undersurface of one row of projections 7 and the upper surface of theadjacent row of projections.

In Fig. 5 of the drawings I have illustrated a slightly modified form ofrotary pump whereln the rotor is mounted horizontally and draws thewater through a single inlet opening and discharges in through a singleoutlet opening. In this form of the invention the casing or stator isindicated at 30 and may be supported in anyr usual manner. An opening 31is formed 1n the underside of said casing 30 and acts as an inletopening for the water. An opening 32 is formed in the top of the casingand acts as a discharge opening. An interior cylinder 33 is mounted inthe casing 30 in such a manner as to leave a passage 34 thereunder andpassages 35 at each end. A shaft 36 extends through the ends of thecasing 30 and carries a rotor 37 provided with a plurality of blades 38which are arranged at an angle and the ends of adjacent blades overlapas more particularly illustrated in the drawings. A plurality ofpro'ections 39 are tormed on the inner face o the cylinder 33 land theblades 38 operate between these projections. As shown the rotor 37 iscentrally reduced as indicated at 40 and the blades on the opposite endsof the rotor extend in opposite directions.

In-the modified form of the invention the rotor is operated through anysuitable motor and will draw the water through the inlet opening 31. Thewater will pass through the Iassage 34 toward each end of the casin 30,t rough the passages 35 at each end, an will be dischar ed toward thecenter of the rotor and out t roughy the opening 22. The projections 39will coperate with the blades 38 to properly direct the water toward thecenter.

The foregoing description and the drawin have reference to what may beconsi ered the preferred, or approved form of my invention. It isto beunderstood that I may make such changes in construction and arrangementand combination er" parts, materials, dimensions, etc., as may proveexpedient and fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is z- 1. A rotary pump comprising a base, aplate having a central opening mounted intermediate the top and bottomof the base, a cup-shaped member situated in the opening, a thrustbearin positioned in the member, a vertical shaft aving its lower end inthe thrust bearing, a stator mounted upon the base and provided with aninlet and an outlet opening, and a rotor mounted in the stator and keyedto the shaft.

2. A rotary pump comprising a base, a plate having a central openingmounted intermediate the top and bottom of the base, a cup-shaped membersituated in the opening, a thrust bearing positioned in the member, avertical shaft having its lower end in the thrust bearing, a statormounted upon the base and provided with an inlet and an outlet opening,a rotor mounted in the stator and keyed to the shaft, projections formedon the interior of the stator, and blades formed on the exterior of therotor and operating between the projections of the stator.

3. A rotary pump com rising a stator having an inlet and an out etopening, a rotor mounted in the stator, means for drlvin the rotor,blades formed on the exterior o the rotor, said blades being arranged instaggered relation and inclined with the ends of the adjacent bladesoverlapping, one end of each blade being beveled on the lower face ndthe opposite end beveled on the upper ace.

4. A rotary pump comprising a stator having an inlet and an outletopening, vertically spaced rows of circumferentially spaced projectionsformed on the interior of the stator, a rotor mounted in the stator,means for rotating the rotor, and vertically spaced inclined bladesformed on the exterior of the rotor and operating between the rows ofprojections on the stator, each blade having its upper end beveled uponits upper side and its lower end beveled upon its lower side.

In testimony whereof I affix my signature in presence of two witnesses.

PAUL H. MUSSWITZ. Witnesses: v

MICHAEL CROGKER, NmLs PETERSON.

